W3School TIY Editor
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<!DOCTYPE html> <html> <head> <meta name="viewport" content="width=device-width, initial-scale=1"> <style> table { border-collapse: collapse; width: 100%; border: 1px solid #ddd; } th, td { text-align: left; padding: 16px; } </style> </head> <body> <h1>全宽表格</h1> <p>使用 width: 100% 来创建一个全宽表格：</p> <table> <tr> <th>First Name</th> <th>Last Name</th> <th>Points</th> </tr> <tr> <td>Jill</td> <td>Smith</td> <td>50</td> </tr> <tr> <td>Eve</td> <td>Jackson</td> <td>94</td> </tr> <tr> <td>Adam</td> <td>Johnson</td> <td>67</td> </tr> </table> </body> </html>